According to Dr. Stefan Naumann (expert on Saturnidae butterflies and research associate at the Museum of Berlin) & Dr. Wolfgang Nässig (expert on Saturnidae butterflies from the Senckenberg Research Institute and Natural History Museum in Frankfurt, Germany) who were asked by Franziska Bauer (also from the Senckenberg Research Institute) to help with the identification of this moth, this is very likely Gamelia kiefferi.

El Dorado Lodge area, Sierra Nevada de Santa Marta, Colombia, 29 October 2014